Multi-Tech Systems MT2456SMI22 manual S22 Speaker/Results Bit Mapped Options Status

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Chapter 4 - V.22bis Commands

S22 - Speaker/Results Bit Mapped Options Status

S22 indicates the status of command options.

Default: 117 (75h) (01110101b)

Bits 0-1 Speaker volume (Ln).

0= Off (L0).

1= Low (L1). (Default)

2= Medium (L2).

3= High (L3).

Bits 2-3 Speaker control (Mn).

0= Disabled (M0).

1= Off on carrier (M1). (Default)

2= Always on (M2).

3= On during handshake (M3). Bits 4-6 Limit result codes (Xn).

0= X0.

4= X1.

5= X2.

6= X3.

7= X4. (Default)

Bit 7 Reserved.

S23 - General Bit Mapped Options Status

S23 indicates the status of command options.

Default: 0

Bits 0-6 Not used.

Bits 6-7 Guard tone (&Gn).

0= None (&G0). (Default)

1= None (&G1).

2= 1800 Hz (&G2).

S24 - Sleep Inactivity Timer

S24 sets the length of time, in seconds, that the modem will operate in normal mode with no detected telephone line or DTE line activity before entering low-power sleep mode. The timer is reset upon any DTE line or telephone line activity. If S24 is zero, neither DTE line nor telephone inactivity will cause the modem to enter the sleep mode. Range: 0-255 seconds

Default: 0

S25 - Delay To DTR Off

S25 sets the length of time that the modem will ignore DTR for taking the action specified by &Dn. Its units are seconds for synchronous modes and one hundredths of a second for other modes.

Range: 0-255 (1 second for synchronous modes 1; 0.01 second otherwise)

Default: 5

S26 - RTS to CTS Delay

S26 sets the time delay, in hundredths of a second, before the modem turns CTS ON after detecting an OFF-to-ON transition on RTS when &R0 is commanded. Pertains to synchronous operation only.

Range: 0-255 hundredths of a second

Default: 1

Multi-Tech Systems, Inc. MT2456SMI-22 SocketModem Developer’s Guide

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Contents SocketModem PN S000281A, Version a Country By Email By PhoneContents Product Description Specifications Product DescriptionTechnical Specifications Speed ConversionPhysical Dimensions Maximum Component HeightPin Configurations Pin Descriptions3V DC Power Handling Precautions 3V and 5V Serial SocketModemInput High Input Low Outputs Output High Output LowGeneric Modem Control Commands DTE/DCE CommandsCall Control Commands Modulation Control CommandsError Control and Data Compression Commands Synchronous Access Mode CommandsFast Connect Command Line Side Device Commands22bis Generic Modem Control Commands Soft Reset and Restore ProfileOperating Mode +VCID Caller ID CID+GCI Country of Installation IdentificationRestore Factory Configuration Profile ProcedureLocal Analog Loopback Test Load to Internal RAM22bis DTE/DCE-Modem Interface commands Command EchoQuiet Result Codes Control Result Code FormConnect Ring No Carrier Error No Dial Tone Busy No Answer Extended Result CodesShort Form Long Form Value in ATXn Command Rlsd OptionResult Codes OK 0 or DTR Option\G Modem-to-Modem Flow Control XON/XOFF RTS/CTS Option+IFC DTE-Modem Local Flow Control Entering and Exiting In Band Active State +IBC In Band CommandsEM Shielding Data Supported DCE-to-DTE Commands Command Hex Codes Description Supported DTE-to-DCE CommandsBand Processing of AT Commands Dial 22bis Call Control CommandsDial Modifiers Set Tone Dial Default Result Code Set Pulse Dial DefaultReturn to On-Line Data Mode Speaker VolumeDisplay Current Configuration and Stored Profiles MSpeaker ControlSelect Guard Tone Select Pulse Dial Make/Break Ratio\V Single Line Connect Message Enable Report Line Signal LevelReport Line Signal Quality Display Blacklisted NumbersDisplay Delayed Numbers NO. Phone Number -DELAYBehavior in Data Mode Syntax *D ExampleReporting Selected Values +PCW Call Waiting Enable+VDR Distinctive Ring 22bis Modulation Control Commands Table of +MS Command Supported Rates+MS Modulation Selection SyntaxEnable/Disable Line Quality Monitor and Auto-Retrain ITU-T or Bell22bis Error Control and Data Compression Commands +ESR Selective Repeat+ETBM Call Termination Buffer Management \B Transmit Break to RemoteResult Codes OK 0 to 5 Error Otherwise Break Control22bis Synchronous Access Mode Commands +ESA Configure Synchronous Access SubmodeReporting Selected Options +ESA?Transmit Flow Control Thresholds +ITF?$F Fast Connect Control 22bis FastConnect CommandSyntax $Fn Defined Values 22bis Line Side Device Commands Threshold Adjustments for Telephony ExtensionTRV Tip and Ring Voltage Measurement Response22bis S-Parameters Read/Write S-ParameterRegister Function Range/Units Default Summary of S-Parameter DefaultsAscii S0 Number of Rings to Auto-Answer S1 Ring CounterS2 Escape Character S3 Carriage Return CharacterS8 Pause Time For Dial Delay S10 Lost Carrier To Hang Up DelayS12 Escape Prompt Delay EPD S9 Carrier Detect Response TimeS16 Test Mode Bit Mapped Options Status S19 ReservedS20 Reserved S21 V.24/General Bit Mapped Options StatusS24 Sleep Inactivity Timer S25 Delay To DTR OffS26 RTS to CTS Delay S22 Speaker/Results Bit Mapped Options StatusS30 Disconnect Inactivity Timer S27 Bit Mapped Options StatusS28 Bit Mapped Options Status S29 Flash Dial Modifier TimeS38 Delay Before Forced Hang Up S36 Lapm Failure ControlS37 Desired Line Connection Speed S39 Flow Control Bit Mapped Options StatusS41 General Bit Mapped Options Status S48 V.42 Negotiation ActionS82 Break Handling Options S86 Call Failure Reason CodeS91 Pstn Transmit Attenuation Level S95 Extended Result Codes Control22bis Result Codes Table of Result Code DefinitionsCode Message Meaning Connect75TX/1200RX Is enabled Block Diagram Figure A-1. Serial Test/Demo Board Block DiagramProduct Safety and EMC Approvals Country CertificationsCountry Country Code More plannedRegulatory Design Considerations Hardware ConsiderationsSafety SocketModem Placement Qty Name DescriptionMulti-Tech Systems, Inc. Compliance ComplianceTelecom Requirements for the United States Label Content and Format Label Physical CharacteristicsLabeling Continuity and Changes Telecommunications Regulations for CanadaOther Label Requirements New Zealand Telecom Warning Notice Industry CanadaInternational Modem Restrictions EMC, Safety, and R&TTE Directive ComplianceSouth African Statement Index Index